Improvements in the manufacture of organic substitution derivatives of cellulose

申请公布号：GB346806(A)

申请号：GB19290038830

申请日期：1929.12.18

申请公布日期：1931.04.20

申请人：

HENRY DREYFUS

分类号：C08B11/04

主分类号：C08B11/04

OBJECTIVE HAVING LONG BACK FOCAL DISTANCE WITH REGARD TO ITS FOCAL LENGTH

METHOD OF MANUFACTURING WIRE MEMORY PLANE

BATTERY ENCASED IN A FUNCTIONAL UNIT

VARIABLE-ORIENTATION MECHANISM

MOULD CORE

STORAGE HEATER

GAME BOARD

LAWNMOWER ATTACHMENT

DEVICE FOR ADJUSTING THE SIZE OF A BEARING CLEARANCE BETWEEN TWO ELEMENTS

WIRE GRIP TERMINAL

BATTERY TERMINAL

LEAD SEPARATOR FOR MICROMINIATURE DEVICES

COUPLING MEMBER FOR ELECTRICAL DISTRIBUTION TRACKS

MEMORY SYSTEM

BI-PHASE KEYED MODULATOR-DEMODULATOR SYSTEM

STEPPING MOTOR CONSTANT VELOCITY DRIVE INCLUDING CLOSED AND OPEN LOOP CONTROL

MINOR CLOCK GENERATOR USING MAJOR CLOCK SIGNALS

LARGE SCALE ARRAY DRIVER FOR BIPOLAR DEVICES

AUTOMATED ARTWORK-GENERATING SYSTEM

ELECTRICAL SWITCH APPARATUS